If a user has custom procedures, views, and/or tables saved within the manex database, this can cause issues. Any updates and/or conversions will automatically remove custom items from the database, meaning the user will potentially lose all of these items.
To avoid this, the user must ensure that all custom procedures, views, tables, etc. are created and saved within a database outside of the manex database. These procedures may be linked to the manex database, but they cannot reside within the database itself.